1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20 package org.apache.myfaces.orchestra.lib;
21
22 import java.io.IOException;
23
24 import javax.servlet.Filter;
25 import javax.servlet.FilterChain;
26 import javax.servlet.FilterConfig;
27 import javax.servlet.ServletException;
28 import javax.servlet.ServletRequest;
29 import javax.servlet.ServletResponse;
30
31 /**
32 * A filter that does absolutely nothing. Can be used with the CompoundFilter.
33 *
34 * @since 1.1
35 */
36 public final class _NullFilter implements Filter
37 {
38 public void init(FilterConfig filterConfig) throws ServletException
39 {
40 }
41
42 public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse,
43 final FilterChain filterChain) throws IOException, ServletException
44 {
45 filterChain.doFilter(servletRequest, servletResponse);
46 }
47
48 public void destroy()
49 {
50 }
51 }